Marathon Calendar Ontario 2025-2026

Sep

7

Sunday

Georgina Marathon

Georgina, Ontario

5 km 10 km 21 km 42 km

Sep

13-14

Sa - Su

Tobermory Trail Race

Tobermory, Ontario

Trail Run 5 km 7 km 21 km 42 km

Sep

20

Saturday

That Dam Hill

Byron, Ontario

5 km 21 km ... 12 hr 24 hr

Oct

5

Sunday

Muskoka Marathon

Bracebridge, Ontario

5 km 10 km 21 km 42 km

Oct

5

Sunday

The County Marathon

Prince Edward, Ontario

5 km 21 km 42 km

Oct

12

Sunday

Fall Colours Run

Ottawa, Ontario

3 km 5 km ... 21 km 42 km

Oct

18-19

Sa - Su

Toronto Waterfront Marathon

Toronto, Ontario

5 km 21 km 42 km

Oct

18-19

Sa - Su

Toronto Waterfront Marathon Long Run

Toronto, Ontario

5 km 21 km 42 km

Oct

26

Sunday

Niagara Falls Marathon

Niagara Falls, Ontario

5 km 10 km 21 km 42 km

Nov

1

Saturday

Hamilton Marathon Road2Hope

Hamilton, Ontario

5 km 10 km 21 km 42 km

Feb

15

Sunday

Embrace Winter Run

Ottawa, Ontario

3 km 5 km ... 21 km 42 km

Apr

26

Sunday

Beneva Mississauga Marathon

Mississauga, Ontario

5 km 10 km 42 km

May

3

Sunday

Georgina Spring Fling

Georgina, Ontario

5 km 10 km 21 km 42 km

May

3

Sunday

Toronto Marathon

Toronto, Ontario

5 km 10 km 21 km 42 km

May

23-24

Sa - Su

Tamarack Ottawa Race Weekend

Ottawa, Ontario

5 km 10 km 21 km 42 km

Aug

9

Sunday

The ENDURrun

Conestogo, Ontario

Trail Run 10 km 15 km ... 30 km 42 km